Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Subaru IMPREZA GRB GH2 (2007-2013)
SKU: XYZ-BRK-BKF-SU-05-B-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø286–444 mm
- Caliper pots4 / 6 / 8 / 12-pot
- Lead time10–15 working days
Fits Subaru IMPREZA GRB GH2 (2007-2013)
Added to basket ✓
Caliper render for this kit:
The factory brakes on the GRB WRX STI hold up well on the road, but ask them to repeat the job through a circuit session and the front anchors show their limits early. Under hard repeated braking, the kind the deceleration zones at Knockhill or Brands Indy demand, the stock fronts build heat faster than they shed it, and fade arrives well before your confidence does. The GH2 hatchback’s low centre of gravity and wide track invite harder driving than the standard brake specification was written for.
The XYZ Racing Hollow Front Brake Kit for the 2007-2013 Subaru Impreza GRB GH2 confronts that at the front axle, where braking load sits heaviest regardless of how the DCCD apportions drive front to rear. It is a single-axle kit, a matched pair of front calipers and two-piece floating discs for the left and right corners, built around reduced rotating mass and improved heat management, the two properties a braking system needs most when sessions turn sustained.
What this brake kit does for your 2007-2013 Subaru IMPREZA GRB GH2
Trail-braking through a tight hairpin in a GRB STI commits a significant proportion of deceleration to the front wheels even with the AWD system loaded up behind you. The kit handles that front-axle demand without the progressive fade that compromises confidence during a hard session. The hollow-vane disc draws cooling air through the rotor body so heat sheds continuously, and the two-piece floating discs pair an aluminium centre bell with an iron friction ring to hold the disc true through repeated heat cycles while trimming rotating mass at the wheel.
Three pad compounds let you spec the kit to the car’s actual use. Street is the quiet, low-dust road default, suiting the GRB as a daily driver; Sport adds bite and heat range for fast road with the occasional track day; Racing is a full circuit compound supporting sustained work where thermal load is a constant pressure. Braided stainless lines are included for a firmer, more repeatable pedal than rubber hoses that swell under pressure.
About the Hollow Front Brake Kit
The hollow-vane name describes the disc’s internal ventilation. Cooling channels run through the rotor body and draw air across the friction surfaces while the wheel turns, so heat clears into the airstream during sustained braking sequences rather than building with nowhere to go. The calipers are hollow-body as standard for stiffness without excess weight, and the kit fits at the front axle, the harder-working end of the Impreza braking system, as a left-and-right pair.
Discs come drilled or slotted at the same price, so you can choose on looks or wet-weather feel. Included caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color to any Pantone code for a small upcharge, ideal for builds following a specific livery. Premium polished-forged finishes (Titanium, Polished Gold, Polished Silver) and candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange) sit in a separate upgrade tier. Two-tone centre bells in five anodized colours, or a titanium bell, are selectable at checkout. For serious track use there is an optional Hollow Racing caliper, run without a dust cover, rated to 1000C and backed by a two-year warranty.
Fitment for the Subaru IMPREZA GRB GH2 (2007-2013)
This kit is confirmed for the Subaru Impreza GRB and GH2 chassis codes across the 2007 to 2013 production run and fits the front axle as a left-and-right pair. The GRB covers the WRX STI hatchback variant; the GH2 covers the wider Impreza hatchback family within that generation. This is a front fitment, so verify your existing rear brake specification before treating it as part of a full-system upgrade.
What buyers also search for
- Subaru Impreza GRB WRX STI front brake upgrade for track day and circuit use
- Subaru Impreza GH2 big brake kit with Street, Sport and Racing pad options
- Subaru Impreza 2007-2013 front brake kit with two-piece floating discs and caliper finish choice
- GRB STI brake upgrade that holds up through repeated hard stops without fade
- XYZ Racing front brake kit for Subaru Impreza hatchback, road to racing spec
Pick your pad compound, disc style and caliper finish when you order to build the kit to your spec.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 286–444 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 4 / 6 / 8 / 12-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
Choosing your spec
Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.
Brake pads — Street, Sport or Racing
Every kit ships with a full set of high-performance pads; the compound is your call.
Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.
Caliper grade — Hollow vs Hollow Racing
Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.
Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 286–380mm (front). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.
Caliper colour & finish
Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).
Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.
Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).
Centre bells
The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.
Same car
Other products that fit this vehicle
Front & rear brake kits, coilovers and more for this car
-
More XYZ products for the Subaru IMPREZA GRB GH2 appear here as the rest of the range publishes.